package sixteen;

import java.util.Arrays;
import java.util.Random;

public class IceCream {
	private static Random rand = new Random(47);
	
	static final String[] FLAVORS = {
		    "Chocolate", "Strawberry", "Vanilla Fudge Swirl",
		    "Mint Chip", "Mocha Almond Fudge", "Rum Raisin",
		    "Praline Cream", "Mud Pie"
		  };
	
	public static String[] flavorSet(int n){
		if (n>FLAVORS.length) {
			throw new IllegalArgumentException("Set too big");
		}
		String[] results = new String[n];
		boolean[] picked = new boolean[FLAVORS.length];
		for (int i = 0; i < n; i++) {
			int t;
			do {
				t = rand.nextInt(FLAVORS.length);
			} while (picked[t]);
			results[i] = FLAVORS[t];
			picked[t] = true;
		}
		
		return results;
	}
	
	public static void main(String[] args) {
		for (int i = 0; i <7; i++) {
			System.out.println(Arrays.toString(flavorSet(3)));
		}
		
	}

}




























